Oceanwell Co.

13 patents currently held · Updated Nov 14, 2026

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Previously recorded as Natural Ocean Well Co. (to 2025)

Ending by 2030

Oct 2037

Next term end

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027202820292030203120322033203420352036203720382039204020412042204320442045

Fee deadlines

Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.

1 fee due May 14, 2027
The maintenance fee for Thermal energy conversion submerged reverse osmosis desalination system (US 11,813,571) comes due May 14, 2027. Unpaid by Nov 15, 2027, it lapses early.
1 fee due Jun 19, 2027
The maintenance fee for Submerged Reverse Osmosis System (US 11,846,305) comes due Jun 19, 2027. Unpaid by Dec 20, 2027, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

Nothing was recorded against this company's patents in the last 90 days.

Patents held now

Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.

Patent	Title	Status	Expires	Confidence
US D965,824	Replaceable dockable membrane module In force Term ends Oct 4, 2037 · From the USPTO record	In force	Term ends Oct 4, 2037	From the USPTO record
US D965,825	Replaceable dockable membrane module In force Term ends Oct 4, 2037 · From the USPTO record	In force	Term ends Oct 4, 2037	From the USPTO record
US D973,177	Desalination pod In force Term ends Dec 20, 2037 · From the USPTO record	In force	Term ends Dec 20, 2037	From the USPTO record
US 11,846,305	Submerged Reverse Osmosis System In force Term ends Feb 9, 2038 · High confidence	In force	Term ends Feb 9, 2038	High confidence
US 12,152,609	Submerged reverse osmosis system In force Term ends Feb 9, 2038 · From the USPTO record	In force	Term ends Feb 9, 2038	From the USPTO record
US 12,173,729	Brine Dispersal System In force Term ends Feb 9, 2038 · High confidence	In force	Term ends Feb 9, 2038	High confidence
US 12,173,730	Brine Dispersal System In force Term ends Feb 9, 2038 · High confidence	In force	Term ends Feb 9, 2038	High confidence
US 11,174,877	Submerged Reverse Osmosis System In force Term ends Jul 5, 2038 · High confidence	In force	Term ends Jul 5, 2038	High confidence
US 11,326,625	Brine Dispersal System In force Term ends Oct 7, 2038 · High confidence	In force	Term ends Oct 7, 2038	High confidence
US 11,529,586	Adhesively-bonded water separation cartridge module In force Term ends Nov 2, 2040 · From the USPTO record	In force	Term ends Nov 2, 2040	From the USPTO record

10 of 13 patents shown.

Pro members see all 13.

Pro members: see all 13 patents

Sources and methods

Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand. How this record was built

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

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Published applications

US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.

1 pending

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